Mostly I can filter out the background noise in cafe’s so have no need for headphones. I don’t always want to cut myself off completely, I want to be able to hear the phone ringing or people trying to get my attention. But background noise is usually fine, I can filter it out and concentrate. However, sometimes a particular voice will cut through the cacophony, and whatever you do to try to ignore it you find yourself tuning in and listening to every word! In those situations you need earphones – they can make the difference between a wasted trip and a successful one!